Fix #2538: Preserve original filename when using --front-matter#2613
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mikefarah merged 1 commit intomikefarah:masterfrom Mar 25, 2026
Merged
Fix #2538: Preserve original filename when using --front-matter#2613mikefarah merged 1 commit intomikefarah:masterfrom
mikefarah merged 1 commit intomikefarah:masterfrom
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When using --front-matter, yq creates a temporary file for the extracted YAML content but replaces the original filename in args with the temp file path. This caused the 'filename' operator to return the temp file path instead of the original filename. Added a filename alias mechanism: when front matter processing replaces the file path, it registers the original filename as an alias. The readDocuments and stream evaluator functions resolve aliases before setting candidateNode.filename. Fixes mikefarah#2538
tmeijn
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This MR contains the following updates: | Package | Update | Change | |---|---|---| | [mikefarah/yq](https://github.com/mikefarah/yq) | patch | `v4.52.4` → `v4.52.5` | MR created with the help of [el-capitano/tools/renovate-bot](https://gitlab.com/el-capitano/tools/renovate-bot). **Proposed changes to behavior should be submitted there as MRs.** --- ### Release Notes <details> <summary>mikefarah/yq (mikefarah/yq)</summary> ### [`v4.52.5`](https://github.com/mikefarah/yq/releases/tag/v4.52.5) [Compare Source](mikefarah/yq@v4.52.4...v4.52.5) - Fix: reset TOML decoder state between files ([#​2634](mikefarah/yq#2634)) thanks [@​terminalchai](https://github.com/terminalchai) - Fix: preserve original filename when using --front-matter ([#​2613](mikefarah/yq#2613)) thanks [@​cobyfrombrooklyn-bot](https://github.com/cobyfrombrooklyn-bot) - Fix typo in filename ([#​2611](mikefarah/yq#2611)) thanks [@​alexandear](https://github.com/alexandear) - Bumped dependencies </details> --- ### Configuration 📅 **Schedule**: Branch creation - At any time (no schedule defined), Automerge - At any time (no schedule defined). 🚦 **Automerge**: Enabled. ♻ **Rebasing**: Whenever MR is behind base branch, or you tick the rebase/retry checkbox. 🔕 **Ignore**: Close this MR and you won't be reminded about this update again. --- - [ ] <!-- rebase-check -->If you want to rebase/retry this MR, check this box --- This MR has been generated by [Renovate Bot](https://github.com/renovatebot/renovate). <!--renovate-debug:eyJjcmVhdGVkSW5WZXIiOiI0My44OS42IiwidXBkYXRlZEluVmVyIjoiNDMuODkuNiIsInRhcmdldEJyYW5jaCI6Im1haW4iLCJsYWJlbHMiOlsiUmVub3ZhdGUgQm90IiwiYXV0b21hdGlvbjpib3QtYXV0aG9yZWQiLCJkZXBlbmRlbmN5LXR5cGU6OnBhdGNoIl19-->
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When using
--front-matter, yq extracts YAML front matter into a temporary file and replacesargs[0]with the temp path. This caused thefilenameoperator to return the temp file path (e.g.,/var/folders/.../temp131236935) instead of the original filename.Changes
pkg/yqlib/utils.go: AddedSetFilenameAlias/ClearFilenameAliases/resolveFilenamefor mapping temp paths to original filenamespkg/yqlib/utils.go:readDocumentsnow resolves filename aliases before settingcandidateNode.filenamepkg/yqlib/stream_evaluator.go:Evaluatenow resolves filename aliasescmd/evaluate_all_command.go: Registers alias when front matter replaces the filenamecmd/evaluate_sequence_command.go: SameTest
Added
TestFrontMatterFilenamePreservedinfront_matter_test.gothat:candidateNode.filenamecontains the original path, not the temp pathFails without the fix (undefined functions), passes with it.
Full test suite passes. Tested locally on macOS ARM (Apple Silicon).
Fixes #2538